Scheduling Data 

Definition

Scheduling data comprises entries that the system requires to calculate the start and finish times for an order, an operation or a material.

Structure

The scheduling data is distinguished in the following ways:

Basic Dates for the Order

The basic dates belong to the header data for an order. The scheduling of operations is calculated from the basic dates. If no relationships are used, then operations are executed in sequence according to their operation number. For example, the operation with operation number 020 is executed after the operation with operation number 010.

The basic dates of the operations for an order determine the sequence in which the operations are scheduled by the system.

Scheduling Type for the Order

The scheduling type determines the way scheduling is calculated. It is defined for each order type by your system administration in Customizing, and is proposed automatically when an order is created. The scheduling type can be changed.

Scheduling Types

The following scheduling types can be distinguished:

Entry of basic date: Start date (with or without time)
The execution of the order should start at this time.

Entry of basic date: End date (with or without time)
The execution of the order should be completed at this time.

Entry of basic dates: Start and end date
The order should be executed on the current day.

Entry of basic dates: None

Performing Work Center

The data from the master record for the performing work center determines the extent to which scheduling of operations is dependent on the shift system.

Data relevant to scheduling is stored as a formula in the master data for the work center.

Execution Duration

The execution duration determines how much time is required to execute an operation. Each operation that you want to include in scheduling must have an execution duration, according to the formula in the work center.

Example: Automatic Calculation

Activity

Entry

You enter the activity type for the operation in the Activity type field:

pm-h

You enter the time required to execute the operation in the Work field:

12 h

You enter the number of people who are to perform the work in the Number field:

3

You enter the proportion of working time that the people can use to execute the operation as a percentage in the Percent field:

100

You specify the key for calculating the execution duration in the Calculation key field:

1

You choose Continue. The system calculates the execution duration and enters it in the Normal duration field:

4 h

This entry method is suitable if the entries in the Number and Normal duration fields are inversely proportional to one another:

Work : Number = Normal duration

Example: Manual Entry

Activity

Entry

You enter the activity type for the operation in the Activity type field:

pm-h

You enter the execution duration in the Normal duration field:

4 h

This entry method is suitable if the number of people and the duration are not in any proportional relationship to one another.

Control Key with Scheduling Indicator for Each Operation

The control key determines whether or not an operation should be included in scheduling.

Operations, to which a control key has been assigned without a scheduling indicator, are automatically excluded for scheduling purposes.

You have the following options for external operations:

Scheduling Restrictions

The scheduling restrictions determine the timeframe within which the operation should be executed.

Lead Times and Lead-Time Offsets for Material

If you want to define when a material should be available in relation to the start date of an operation, you have the following entry options on the component detail screen in the Time interval field under General data: